POSITIVE VOLTAGE REGULATORS L78L00SERIES

(1)

■

OUTPUT CURRENT UP TO 100 mA

■

OUTPUT VOLTAGES OF 3.3; 5; 6; 8; 9; 10;

12; 15; 18; 20; 24V

■

THERMAL OVERLOAD PROTECTION

■

SHORT CIRCUIT PROTECTION

■

NO EXTERNAL COMPONENTS ARE REQUIRED

■

AVAILABLE IN EITHER ±5% (AC) OR ±10%

(C) SELECTION DESCRIPTION

The L78L00 series of three-terminal positive regulators employ internal current limiting and thermal shutdown, making them essentially indestructible. If adequate heat-sink is provided, they can deliver up to 100 mA output current. They are intended as fixed voltage regulators in a wide range of applications including local or on-card regulation for elimination of noise and distribution problems associated with single-point regulation.

In addition, they can be used with power pass elements to make high-current voltage regulators.

The L78L00 series used as Zener diode/resistor combination replacement, offers an effective output impedance improvement of typically two

orders of magnitude, along with lower quiescent current and lower noise.

SERIES

POSITIVE VOLTAGE REGULATORS

Figure 1: Schematic Diagram

TO-92

SOT-89 SO-8

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Table 1: Absolute Maximum Ratings

(*) Our SO-8 package used for Voltage Regulators is modified internally to have pins 2, 3, 6 and 7 electrically communed to the die attach flag. This particular frame decreases the total thermal resistance of the package and increases its ability to dissipate power when an appro- priate area of copper on the printed circuit board is available for heat-sinking. The external dimensions are the same as for the standard SO-8.

Table 2: Thermal Data

(*) Considering 6 cm² of copper Board heat-sink

Figure 2: Test Circuits

Figure 3: Pin Connection (top view, bottom view for TO-92)

Symbol Parameter Value Unit

V_I

DC Input Voltage V_O= 3.3 to 9 V 30

V_O= 12 to 15 V 35 V

V_O= 18 to 24 V 40

I_O Output Current 100 mA

P_tot Power Dissipation Internally Limited (*)

T_stg Storage Temperature Range -40 to 150 °C

T_op Operating Junction Temperature Range

for L78L00C, L78L00AC 0 to 125

for L78L00AB -40 to 125 °C

Symbol Parameter SO-8 TO-92 SOT-89 Unit

R_thj-case Thermal Resistance Junction-case Max 20 15 °C/W R_thj-amb Thermal Resistance Junction-ambient Max 55 (*) 200 °C/W

PIN 1 = V_OUT

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Table 3: Order Codes

(*) Available in Tape & Reel with the suffix "13TR".

(**) Available in Ammopak with the suffix "-AP" or in Tape & Reel with the suffix "TR". Please note that in these cases pins are shaped according to Tape & Reel specifications.

TYPE SO-8 (TUBE)* TO-92 (TUBE)** SOT-89 (T&R) OUTPUT VOLTAGE

L78L33C L78L33CD L78L33CZ 3.3 V

L78L33AC L78L33ACD L78L33ACZ L78L33ACUTR 3.3 V

L78L33AB L78L33ABD L78L33ABZ L78L33ABUTR 3.3 V

L78L05C L78L05CD L78L05CZ 5 V

L78L05AC L78L05ACD L78L05ACZ L78L05ACUTR 5 V

L78L05AB L78L05ABD L78L05ABZ L78L05ABUTR 5 V

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Table 4: Electrical Characteristics Of L78L33C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 8.3V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified)

Table 5: Electrical Characteristics Of L78L05C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 10V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified).

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V_O Output Voltage T_J = 25°C 3.036 3.3 3.564 V

V_O Output Voltage I_O = 1 to 40 mA V_I = 5.3 to 20 V 2.97 3.63 V I_O = 1 to 70 mA V_I = 8.3 V 2.97 3.63

∆V_O Line Regulation V_I = 5.3 to 20 V T_J = 25°C 150 mV

V_I = 6.3 to 20 V T_J = 25°C 100

∆V_O Load Regulation I_O = 1 to 100 mA T_J = 25°C 60 mV

I_O = 1 to 40 mA T_J = 25°C 30

I_d Quiescent Current T_J = 25°C 6 mA

T_J = 125°C 5.5 mA

∆I_d Quiescent Current Change I_O = 1 to 40 mA 0.2 mA

V_I = 6.3 to 20 V 1.5

eN Output Noise Voltage B =10Hz to 100KHz T_J = 25°C 40 µV

SVR Supply Voltage Rejection V_I = 6.3 to 16.3 V f = 120Hz I_O = 40 mA T_J = 25°C

41 49 dB

V_d Dropout Voltage 1.7 V

V_O Output Voltage T_J = 25°C 4.6 5 5.4 V

V_O Output Voltage I_O = 1 to 40 mA V_I =7 to 20 V 4.5 5.5 V

I_O = 1 to 70 mA V_I = 10 V 4.5 5.5

V_I = 9 to 20 V T_J = 25°C 150

I_O = 1 to 40 mA T_J = 25°C 30

T_J = 125°C 5.5 mA

V_I = 8 to 20 V 1.5

SVR Supply Voltage Rejection V_I = 9 to 20 V f = 120Hz I_O = 40 mA T_J = 25°C

40 49 dB

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Table 6: Electrical Characteristics Of L78L06C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 12V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified).

Table 7: Electrical Characteristics Of L78L08C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 14V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified).

V_O Output Voltage I_O = 1 to 40 mA V_I =8.5 to 20 V 5.4 6.6 V

I_O = 1 to 70 mA V_I = 12 V 5.4 6.6

V_I = 9 to 20 V T_J = 25°C 150

I_O = 1 to 40 mA T_J = 25°C 30

T_J = 125°C 5.5 mA

V_I = 8 to 20 V 1.5

38 46 dB

I_O = 1 to 70 mA V_I = 14 V 7.2 8.8

V_I = 11 to 23 V T_J = 25°C 150

I_O = 1 to 40 mA T_J = 25°C 40

T_J = 125°C 5.5 mA

V_I = 11 to 23 V 1.5

36 45 dB

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Table 8: Electrical Characteristics Of L78L09C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 15V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified).

Table 9: Electrical Characteristics Of L78L10C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 16V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified).

I_O = 1 to 70 mA V_I = 15 V 8.1 9.9

V_I = 12 to 23 V T_J = 25°C 200

I_O = 1 to 40 mA T_J = 25°C 40

T_J = 125°C 5.5 mA

V_I = 12 to 23 V 1.5

36 44 dB

V_O Output Voltage I_O = 1 to 40 mA V_I =12.5 to 23 V 9 11 V

I_O = 1 to 70 mA V_I = 16 V 9 11

V_I = 13 to 23 V T_J = 25°C 170

I_O = 1 to 40 mA T_J = 25°C 40

T_J = 125°C 5.5 mA

V_I = 13 to 23 V 1.5

37 45 dB

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Table 10: Electrical Characteristics Of L78L12C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 19V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified).

Table 11: Electrical Characteristics Of L78L15C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 23V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified).

V_O Output Voltage I_O = 1 to 40 mA V_I =14.5 to 27 V 10.8 13.2 V I_O = 1 to 70 mA V_I = 19 V 10.8 13.2

V_I = 16 to 27 V T_J = 25°C 200

I_O = 1 to 40 mA T_J = 25°C 50

I_d Quiescent Current T_J = 25°C 6.5 mA

T_J = 125°C 6 mA

V_I = 16 to 27 V 1.5

36 42 dB

V_O Output Voltage I_O = 1 to 40 mA V_I =17.5 to 30 V 13.5 16.5 V I_O = 1 to 70 mA V_I = 23 V 13.5 16.5

V_I = 20 to 30 V T_J = 25°C 250

I_O = 1 to 40 mA T_J = 25°C 75

T_J = 125°C 6 mA

V_I = 20 to 30 V 1.5

33 39 dB

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Table 12: Electrical Characteristics Of L78L18C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 27V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified).

Table 13: Electrical Characteristics Of L78L20C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 29V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified)

V_O Output Voltage I_O = 1 to 40 mA V_I = 22 to 33 V 16.2 19.8 V I_O = 1 to 70 mA V_I = 27 V 16.2 19.8

∆V_O Line Regulation V_I = 22 to 33 V T_J = 25°C 320 mV

V_I = 22 to 33 V T_J = 25°C 270

I_O = 1 to 40 mA T_J = 25°C 85

T_J = 125°C 6 mA

V_I = 23 to 33 V 1.5

32 38 dB

V_O Output Voltage I_O = 1 to 40 mA V_I = 24 to 33 V 18 22 V

I_O = 1 to 70 mA V_I = 29 V 18 22

V_I = 24 to 34 V T_J = 25°C 280

I_O = 1 to 40 mA T_J = 25°C 90

T_J = 125°C 6 mA

V_I = 25 to 33 V 1.5

31 38 dB

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Table 14: Electrical Characteristics Of L78L24C (refer to the test circuits, T

_J

= 0 to 125°C, V

_I

= 33V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF unless otherwise specified).

Table 15: Electrical Characteristics Of L78L33AB And L78L33AC (refer to the test circuits, V

_I

= 8.3V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L33AC, T

_J

= -40 to 125°C for L78L33AB, unless otherwise specified)

V_I = 28 to 38 V T_J = 25°C 300

I_O = 1 to 40 mA T_J = 25°C 100

T_J = 125°C 6 mA

V_I = 28 to 38 V 1.5

30 37 dB

V_O Output Voltage T_J = 25°C 3.168 3.3 3.432 V

V_O Output Voltage I_O = 1 to 40 mA V_I = 5.3 to 20 V 3.135 3.465 V I_O = 1 to 70 mA V_I = 8.3 V 3.135 3.465

V_I = 6.3 to 20 V T_J = 25°C 100

I_O = 1 to 40 mA T_J = 25°C 30

T_J = 125°C 5.5 mA

V_I = 6.3 to 20 V 1.5

41 49 dB

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Table 16: Electrical Characteristics Of L78L05AB And L78L05AC (refer to the test circuits, V

_I

= 10V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L05AC, T

_J

= -40 to 125°C for L78L05AB, unless otherwise specified)

Table 17: Electrical Characteristics Of L78L06AB And L78L06AC (refer to the test circuits, V

_I

= 12V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L06AC, T

_J

= -40 to 125°C for L78L06AB, unless otherwise specified)

V_I = 8 to 20 V T_J = 25°C 100

I_O = 1 to 40 mA T_J = 25°C 30

T_J = 125°C 5.5 mA

V_I = 8 to 20 V 1.5

41 49 dB

V_O Output Voltage I_O = 1 to 40 mA V_I = 8.5 to 20 V 5.7 6.3 V

I_O = 1 to 70 mA V_I = 12 V 5.7 6.3

V_I = 9 to 20 V T_J = 25°C 100

I_O = 1 to 40 mA T_J = 25°C 30

T_J = 125°C 5.5 mA

V_I = 9 to 20 V 1.5

39 46 dB

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Table 18: Electrical Characteristics Of L78L08AB And L78L08AC (refer to the test circuits, V

_I

= 14V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L08AC, T

_J

= -40 to 125°C for L78L08AB, unless otherwise specified)

Table 19: Electrical Characteristics Of L78L09AB And L78L09AC (refer to the test circuits, V

_I

= 15V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L09AC, T

_J

= -40 to 125°C for L78L09AB, unless otherwise specified)

V_O Output Voltage I_O = 1 to 40 mA V_I = 10.5 to 23 V 7.6 8.4 V

I_O = 1 to 70 mA V_I = 14 V 7.6 8.4

V_I = 11 to 23 V T_J = 25°C 125

I_O = 1 to 40 mA T_J = 25°C 40

T_J = 125°C 5.5 mA

V_I = 11 to 23 V 1.5

37 45 dB

V_O Output Voltage I_O = 1 to 40 mA V_I = 11.5 to 23 V 8.55 9.45 V I_O = 1 to 70 mA V_I = 15 V 8.55 9.45

V_I = 12 to 23 V T_J = 25°C 150

I_O = 1 to 40 mA T_J = 25°C 40

T_J = 125°C 5.5 mA

V_I = 12 to 23 V 1.5

37 44 dB

(12)

Table 20: Electrical Characteristics Of L78L10AB And L78L10AC (refer to the test circuits, V

_I

= 16V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L10AC, T

_J

= -40 to 125°C for L78L10AB, unless otherwise specified)

Table 21: Electrical Characteristics Of L78L12AB And L78L12AC (refer to the test circuits, V

_I

= 19V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L12AC, T

_J

= -40 to 125°C for L78L12AB, unless otherwise specified)

I_O = 1 to 70 mA V_I = 16 V 9.5 10.5

V_I = 13 to 23 V T_J = 25°C 170

I_O = 1 to 40 mA T_J = 25°C 40

T_J = 125°C 5.5 mA

V_I = 13 to 23 V 1.5

37 45 dB

V_I = 16 to 27 V T_J = 25°C 200

I_O = 1 to 40 mA T_J = 25°C 50

T_J = 125°C 6 mA

V_I = 16 to 27 V 1.5

37 42 dB

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Table 22: Electrical Characteristics Of L78L15AB And L78L15AC (refer to the test circuits, V

_I

= 19V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L15AC, T

_J

= -40 to 125°C for L78L15AB, unless otherwise specified)

Table 23: Electrical Characteristics Of L78L18AB And L78L18AC (refer to the test circuits, V

_I

= 27V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L18AC, T

_J

= -40 to 125°C for L78L18AB, unless otherwise specified)

V_I = 20 to 30 V T_J = 25°C 250

I_O = 1 to 40 mA T_J = 25°C 75

T_J = 125°C 6 mA

V_I = 20 to 30 V 1.5

34 39 dB

V_I = 22 to 33 V T_J = 25°C 270

I_O = 1 to 40 mA T_J = 25°C 85

T_J = 125°C 6 mA

V_I = 23 to 33 V 1.5

33 38 dB

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Table 24: Electrical Characteristics Of L78L20AB And L78L20AC (refer to the test circuits, V

_I

= 29V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L20AC, T

_J

= -40 to 125°C for L78L20AB, unless otherwise specified)

Table 25: Electrical Characteristics Of L78L24AB And L78L24AC (refer to the test circuits, V

_I

= 27V, I

_O

= 40 mA, C

_I

= 0.33 µF, C

_O

= 0.1 µF,

T

_J

= 0 to 125°C for L78L24AC, T

_J

= -40 to 125°C for L78L24AB, unless otherwise specified)

V_O Output Voltage I_O = 1 to 40 mA V_I = 24 to 33 V 19 21 V

I_O = 1 to 70 mA V_I = 29 V 19 21

V_I = 24 to 34 V T_J = 25°C 280

I_O = 1 to 40 mA T_J = 25°C 90

T_J = 125°C 6 mA

V_I = 25 to 33 V 1.5

32 38 dB

V_O Output Voltage T_J= 25°C 23 24 25 V

V_I = 28 to 38 V T_J = 25°C 300

I_O = 1 to 40 mA T_J = 25°C 100

T_J = 125°C 6 mA

V_I = 28 to 38 V 1.5

31 37 dB

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Figure 4: L78L05/12 Output Voltage vs Ambient Temperature

Figure 5: L78L05/12/24 Load Characteristics

Figure 6: L78L05/12/24 Thermal Shutdown

Figure 7: L78L05/12 Quiescent Current vs Output Current

Figure 8: L78L05 Quiescent Current vs Input Voltage

Figure 9: L78L05/12/24 Output Characteristics

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Figure 10: L78L05/12/24 Ripple Rejection

Figure 11: L78L05 Dropout Characteristics

Figure 12: L78L00 Series Short Circuit Output

Current

(17)

TYPICAL APPLICATIONS

Figure 13: High Output Current Short Circuit Protected

Figure 14: Edit Boost Circuit

Figure 15: Current Regulator

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Figure 16: Adjustable Output Regulator

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DIM. mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 1.35 1.75 0.053 0.069

A1 0.10 0.25 0.04 0.010

A2 1.10 1.65 0.043 0.065

B 0.33 0.51 0.013 0.020

C 0.19 0.25 0.007 0.010

D 4.80 5.00 0.189 0.197

E 3.80 4.00 0.150 0.157

e 1.27 0.050

H 5.80 6.20 0.228 0.244

h 0.25 0.50 0.010 0.020

L 0.40 1.27 0.016 0.050

k ˚ (max.)

ddd 0.1 0.04

SO-8 MECHANICAL DATA

8

(20)

DIM.

mm. mils

A 1.4 1.6 55.1 63.0

B 0.44 0.56 17.3 22.0

B1 0.36 0.48 14.2 18.9

C 0.35 0.44 13.8 17.3

C1 0.35 0.44 13.8 17.3

D 4.4 4.6 173.2 181.1

D1 1.62 1.83 63.8 72.0

E 2.29 2.6 90.2 102.4

e 1.42 1.57 55.9 61.8

e1 2.92 3.07 115.0 120.9

H 3.94 4.25 155.1 167.3

L 0.89 1.2 35.0 47.2

SOT-89 MECHANICAL DATA

(21)

DIM.

mm. mils

A 4.32 4.95 170.1 194.9

b 0.36 0.51 14.2 20.1

D 4.45 4.95 175.2 194.9

E 3.30 3.94 129.9 155.1

e 2.41 2.67 94.9 105.1

e1 1.14 1.40 44.9 55.1

L 12.7 15.49 500.0 609.8

R 2.16 2.41 85.0 94.9

S1 0.92 1.52 36.2 59.8

W 0.41 0.56 16.1 22.0

TO-92 MECHANICA DATA

(22)

DIM.

mm. inch

A 330 12.992

C 12.8 13.2 0.504 0.519

D 20.2 0.795

N 60 2.362

T 22.4 0.882

Ao 8.1 8.5 0.319 0.335

Bo 5.5 5.9 0.216 0.232

Ko 2.1 2.3 0.082 0.090

Po 3.9 4.1 0.153 0.161

P 7.9 8.1 0.311 0.319

Tape & Reel SO-8 MECHANICAL DATA

(23)

DIM.

mm. inch

A 180 7.086

C 12.8 13.0 13.2 0.504 0.512 0.519

D 20.2 0.795

N 60 2.362

T 14.4 0.567

Ao 4.70 4.80 4.90 0.185 0.189 0.193

Bo 4.30 4.40 4.50 0.169 0.173 0.177

Ko 1.70 1.80 1.90 0.067 0.071 0.075

Po 3.9 4.0 4.1 0.153 0.157 0.161

P 7.9 8.0 8.1 0.311 0.315 0.319

Tape & Reel SOT89 MECHANICAL DATA

(24)

DIM. mm. inch

A1 4.80 0.189

T 3.80 0.150

T1 1.60 0.063

T2 2.30 0.091

d 0.48 0.019

P0 12.5 12.9 0.492 0.508

P2 5.65 7.05 0.222 0.278

F1, F2 2.44 2.54 2.94 0.096 0.100 0.116

delta H ±2 0.079

W 17.5 18.00 19.0 0.689 0.709 0.748

W0 5.7 6.3 0.224 0.248

W1 8.5 9.25 0.335 0.364

W2 0.50 0.20

H 18.50 18.70 0.728 0.726

H0 15.50 16.50 0.610 0.650

H1 25.00 0.984

D0 3.8 4.2 0.150 0.165

t 0.90 0.035

L1 3 0.118

delta P ±1 0.039

u 50 1.968

Φ1 360 14.173

Φ2 30 1.181

Tape & Reel for TO-92 MECHANICAL DATA

Φ 1 Φ 2

u

W W1 W0

W2 A1

d

D0 H1

H H0

L l1

F1 F2 P2

P0 delta P

delta H

T2 T1

T

t

(25)

Table 26: Revision History

Date Revision Description of Changes

14-Mar-2005 9 Add Tape & Reel for TO-92.

15-Mar-2005 10 Add note on Table 3.

(26)

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